Hoist.



.PATLNTLD S5214, 1,905.I

No. 830,385.l

SLT. WALLACE.

HOIST. `AgvPLIoATIoN FILED Dmzs, 190s.

2 SHEETS-SHEET 1.

HL. "Hl L n /a f6 26,

vBy-

. 'W/T/VESSES.' I

W/TA/Essfs:

@giov/46% "FE: E.

PATBNTED sBPT.-4, 1'906. s. T. WALLACE.

HoIsT.

APPLICATION FILED DEO.Z3. 1905. f

' 'z s'nBn'rs-snnm 2.

ATTORNEYS be carried in a 'hopper or bucket.

UNITED STATES PATENT oEEIoE.

HOIST.

Specification of Letters Patenr.

recenter sept. 4.11906.

Application filed December 23.1905. Serial 510.293.969.

`T0 a/Z, whom, t may concern,.-

-ple, approximately four feet. Carried by the -Be it known that I, SAMUEL THOMAS WAL- frame 12 are adjustable bearings 14, which LACE, a citizen of the United States, and a resident of Los Angeles, in the county of Los Angeles and State of California, have invented a new and Improved Hoist, of which the following isa full, clear,'and exact description.

The invention relates' to an improvement in the hoist forming the subject-matter of my prior patent, Serial No. 771,108, dated September 27, 1904.

The object of my present invention is primarily to adapt it to handling mortar, lime,

cement, brick, and other material required to In attaining this end I provideA a carriage which is adapted to move along'a vertical track and which mounts pivotally a bucket. with the bucket is a peculiar latch and trip, by means of which the bucket is held during the ascent and automatically released when the top of the track is reached, the bucket being pivoted off center, so that as the bucket is released-the bucket automatically tilts and dumps its load.

The invention resides in certain special features, which will be fully set forth hereinafter, and particularly pointed out in the claims. j

Reference is to be had to the accompanying drawings, which illustrate as an example the preferred embodiment of my invention, in which drawings- Figure 1 is a side elevation of the invention, showing a bucket approaching the upper end of the track. Fig. 2 is a plan view of the parts shown'in Fig. 1. Fig. 3 is a front elevation of the apparatus'with a part in section. Fig. 4 is a side view ofthe trip. Fig.

5 is a front viewthereof, and Fig. 6 is a detail of one of the latches.

. As may be seen from my prior patent, the invention is intended for hoisting the material-for instance, for raising materials in a building in the course of construction.

' 410 indicates the vertically-extending stationary track, which is formed of two T-rails suitably braced. Near the upper end of the track is located a chute 11, which is sustained by a frame 12 and which is adapted to receive the load and direct the same into the building. In Fig. 1 the track is broken away at a point directly above the frame 12, but in practice the track will extend a relatively greater distance above the chute-for exam- Coactingsustain a horizontal shaft 15, carrying triprollers 16, the operation of whichwill be herelwhich extend downward and are fastened to the lower ends of the side frames 17. The outer ends of the top'frames 19 are also connected by a cross-brace 21, riveted in place.

22a indicates a bail, the ends of which are riveted or otherwise fastened to the side frames 18. Connected by stay-bolts 22 to the side frames 17 are bars 23, which extend vertically on each side ofthe carriage and are constructed preferably of angle-iron, as shown. Located between therbars 23 and the side frames 17 are rollers 24, which run on the track 10, the ljournals of said rollers being held in the parts 17 and 23, said rollers being arranged two at each side ofthe carriage. Attached to each bar 23 are two brackets 25, which are diagonally disposed, as shown best in Fig. 2, and carry beveled and flanged rollers 26. These rollers engage the rear Sides of the rails 10, so that the carriage is securely held on the track and preventedfrom any movement independently thereof, exce t a vertical movement along the track. d) suitable connection is joined to the bail 22a to permit elevating the carriage. The braces 20 are further strengthened by means of struts 27, which extend from the braces inward to the respective side frames 17 and are fastened to said parts. The bucket 28 may be of any desired construction and is here shown with a rounding bottom and an open upper end. The bucket has studs y29, fastened to each side at a point loutward from the vertical center of the bucket, and these studs or trunnions are lmounted in bearings 30, attached, respectively, to the braces 20, so that the bucket is free t`o turn around the center of the trunlnions into dumping position. Since said ICO IXO j maticall tilt as soon as the devices foholding the ucket, which will be hereinafter described, are released. Said bucket is held relcasably in upright or normal position by means of two latches 31, which are fastened on a rock-shaft 32, held in bearings 33, and these bearings arey in turn sustained by the front brace 21, before described. Fastened to one end of the rock-shaft 32 `is an arm 33, io and this is adapted to be struck by the trip or trigger 35, which. is shown best in Figs. 4 and 45. Said trip is located at the side of the bucket in which the arm 34 is located, and the trip is pivoted to the adjacent top frame 19 by means of a pin 36. (See Fig. l.) The trip is triangular in general form, its upper run lying just inward of the top frame 19, as shown by the dotted lines in Fig'. 1, and lthence bending laterally, as indicated a't 35a, 2o so as to pass outside of thetop frame. The trip then extends downward and inward, and the diagonal run of the trip has'a loop 35" formed "therein, which loosely receives the adjacent strut 27. The lower end ofsaid 2 5 diagonal run is joined by a twist 35c to the vertical run, and this vertical run is formed with an offset portion 35d,'which is adapted to strike the trip-roller 16, so as to operate the 'trip when the carriage reaches its ele- 3o vated position. Normally the trip hangs by gravity in inactive position, (shown by Fig. 1,) the bend 35"l of the trip lying under the arm 34, so that when this art ofthe trip is thrown up the shaft 32 will) be rocked, so as 3 5 to lift the dogs 31 and release the bucket.

In the operation of the invention the parts are assembled as shown in the drawings, and

the carriagewith the loaded bucket is raised along the track 10. The parts are so ar- 40 ranged that when the bucket reaches a point level with the chute 11, so that the load of the bucket may be properly dumped in the chute, the offset portion 35d of the'trip will run into engagement with the adjacent trip- 4.5 roller 16. This will throw the trip outward and raise the bend 35, thus rocking the shaft disengagingthc dogsl.: Thebucket "fthe n t1 y gravi ty i orv'aiTd-nd empties 3" When the bucket has r. load on the chute 11. 5o "beenemptied, the carriage should be allowed to descend, the rollers 16 then engaging the bucket and throwing it back to the upright position shown. As this operation takes place the front edge of the bucket strikes the 5 5 dogs 31 and passes under them, allowing the dogs to fall and retaining the bucket in place ntil the trip is again actuated to release the laving thus described the preferred form 6o of my invention, what I claim as new, and

desire to secure by Letters Patent, is

1. The combination of a vertical track, a carriage arranged to mo-ve thereon, a dumpadapted to hold the bucket in active posiating member adapted to be engaged by said adaptcdto retain thri'r'trclnetzingupright/ tion, and means for automaticallyoper and diagonali a the outer en s of the top frames with the lower 4ends of the side frames, bearings carposition. ing-bucket mounted on the carriage', a dog tion, a trip arranged to release the dog, whereby to dump the bucket and means for automatically operating the trip.

' 2. The combinationof a vertically-extending track, af carriage adapted to move there- 7o on, a dumping-bucket mounted on the carriage, a dog forretai'ning the bucket in active position, a chute atthe upper portion of the track, and means for automatically releasing the dog whereby to dump the bucket to throw the contents' thereof on the chute.

3. The combination of a vertically-extending track, a chute at the upper portion thereof,y a carriage arranged to move 'on the track, a dumping-bucketmounted on the carriage, 8oa latch adapted to releasably hold the carriage in active position, a trip arranged to re lease the latch, and means adjacent to the chute for actuating the trip.

4. The combination of a track, a carriage 8 5 -arranged to move thereon, a dumping-bucket mounted on the carriage, a dog ada ted to releasably'hold the bucket, a trip pivotallymounted on the carriage and adapted to actuate the dog, and a stationary trip-oper- 9e ating member located alongside of the track to be engaged by the trip.

5. The combination of a track, a carriage arranged to move thereon, a dumping-bucket` mounted on the carriage, a dog adapted to 95. retain the bucket in active position, a triangular trip pivotally mounted on the carriage and adapted to actuate the dog, said trip having an offset portion, and a stationary oper- ICO offset portion of the trip.

6, The combination of a track, a carriage arranged to run thereon, a dumping-bucket mounted on the carriage, a rock-shaft mounted on the carriage, a dog attached to the rock-shaft and releasably engaging the bucket, an arm also engaging the rock-shaft,

a trip mounted on the cairiage and engaging the arm, and means for automatically operating the trip.

7. The combination of a track, a carriage arranged to run on the same, a bucket pivotarlflggmounted on the carriage at a point to one sideoithe vertical center of thebucket, whereby to cause-.the bucket totilhfa'lat ih" 1 IVO the latch.,

3. The combination of a frame, a car Vage adapted to run thereon, the carriage hav g1 side frames, outwardly-extendi ngtop frames, f`=-.i

-extending braces connecting ried by said braces, a bucket pivotally mounted in said bearings, and a releasable means for retaining the bucket in upright 9. The combination of a track, a carriage carried by the brackets and adapted to en-y gage the back of the track, and a bucket mounted on the carriage.

10. The combination of the Vertical track,

a chute projecting outwardly from the upper portion thereof, a carriage 'arranged to 'run on the track, a bucket pivoted belowits horizontal center to the carriage, means `for re-,.

taining the bucket in an upright position, and means for automatically releasing the retaining means whereby to dump thc bucket, when said bucket reaches a position opposite the chute.

1-1. The combination of a vertical track, a chute located near the upper end thereof, a carriage adapted to run on the track, a bucket'pivotally mounted on the carriage at a point to one side of the vertical center of the bucket, for the purpose specified, means for releasably holding the bucket in upright position, and devices for automaticall reeasing said means a's the lbucket reac es a position opposite the chute. l

12. The combination of a track, a carriage arranged to run thereon, a dumping-bucket mounted on the carriage, a latch adapted to hold the bucket in vupright position, a trip pivotally mounted on the carriage, thev trip having a loop therein adapted loosely to receive a part of the framing of the carriage, said trip being adapted to o crate said latch, and means for automatica ly actuating the trip. j

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL THOMAS WALLACE. `Witnessesz E. B. LINDEsMrrH,

C, E. GILHoUsEN. 

